EP1967804B1 - Dispositif et procédé de séchage pour carrosseries peintes, et dispositif de circulation d'air de séchage dans un tel dispositif et procédé - Google Patents

Dispositif et procédé de séchage pour carrosseries peintes, et dispositif de circulation d'air de séchage dans un tel dispositif et procédé Download PDF

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Publication number
EP1967804B1
EP1967804B1 EP07103603A EP07103603A EP1967804B1 EP 1967804 B1 EP1967804 B1 EP 1967804B1 EP 07103603 A EP07103603 A EP 07103603A EP 07103603 A EP07103603 A EP 07103603A EP 1967804 B1 EP1967804 B1 EP 1967804B1
Authority
EP
European Patent Office
Prior art keywords
air
enclosure
drying
aimed
nozzles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07103603A
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German (de)
English (en)
Other versions
EP1967804A1 (fr
Inventor
Henk Gheysen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfadis
Original Assignee
Alfadis
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfadis filed Critical Alfadis
Priority to AT07103603T priority Critical patent/ATE456015T1/de
Priority to DE602007004436T priority patent/DE602007004436D1/de
Priority to EP07103603A priority patent/EP1967804B1/fr
Priority to CNA2008100881884A priority patent/CN101259462A/zh
Publication of EP1967804A1 publication Critical patent/EP1967804A1/fr
Application granted granted Critical
Publication of EP1967804B1 publication Critical patent/EP1967804B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/003Supply-air or gas filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/12Vehicle bodies, e.g. after being painted

Definitions

  • the invention relates to area of paint cabins (spray booths) for painting objects of various types, more in particular for cars, trucks, trailers, etc.
  • Such spray booths or painting cabins involve the following essential features :
  • spray booths are combined “spray-bake” installations, also called “spray-dry” booths. This means that after a spraying phase, the booth can be switched to drying mode.
  • the spray mode is the mode during which the operator (painter) or robotized system is spraying the paint on / towards the object.
  • Inlet air temperature and booth temperature are set to approximately 20 °C.
  • "Overspray” and paint mist are extracted through extraction filters and the air is ejected outside the building housing the installation.
  • DE 201 04 205 U1 describes a method for drying a painted body involving circulating aimed air flows in an enclosure by means of directional nozzles in the upper part of said enclosure and removing air from the bottom of said enclosure, whereas the air flow to said directional nozzles in said enclosure is provided by blowing means outside said enclosure, through filter means forming at least part of a lateral surface of said enclosure.
  • DE 2 2004 01423 U1 discloses a similar method wherein the nozzles and filter means are placed in a ceiling surface of the drying enclosure.
  • EP-A-1 400 285 discloses a drying arrangement in which the blowing means are placed outside the drying enclosure and draw air from a so called plenum area above the drying enclosure.
  • Other examples of known jet-systems have been disclosed in EP 0 690 279 and in EP 0 960 312 .
  • the invention there for provides a method for drying a painted body as defined in claim 1.
  • aimed air flows refers to air flows (preferably having a velocity of 1 - 5 m/sec on the surface of the objects which are being dried, and most preferably a velocity of 1,5 - 2,5 m/sec) individually directed in selected (fixed or, preferably, capable to be individually oriented) directions, by means of directional nozzles / air jets (which are preferably capable to be individually oriented).
  • air is removed from the enclosure through air evacuation means forming at least part of the floor of said enclosure.
  • the invention also specifically provides a new type of drying device for painted bodies, comprising an enclosure with a top ceiling at least partially formed of filter means for incoming air and with a bottom floor at least partially formed of air evacuation means, further comprising aimed air nozzles within said enclosure, which new said drying device more specifically comprises blowing means provided outside said enclosure, connected to said individually aimed air nozzles whereas portions of said top ceiling filter means are interposed between said blowing means and said nozzles.
  • the aimed air nozzles of the drying device according to the invention must be understood as individually aimed air nozzles, each directed in a selected direction (fixed or, preferably, capable to be individually oriented).
  • the drying device according to the invention is most preferably designed as an essentially hermetic enclosure, operating under a pressure (slightly) increased over atmospheric pressure (in order to help avoiding any ingress of dust).
  • the invention furthermore specifically provides a new type of device for circulating aimed air flow in a drying booth for painted bodies, with a top ceiling at least partially formed of filter means for incoming air, comprising directional air nozzles positioned within said drying booth and blowing means feeding said directional air nozzles, whereas said blowing means are specifically provided outside said drying booth and connected to said directional air nozzles within said drying booth, and whereas portions of said top ceiling filter means are interposed between said blowing means and said nozzles.
  • the directional air nozzles of the circulation device according to the invention must be understood as individually directed air nozzles, each directed in a selected direction (fixed or, preferably, capable to be individually oriented).
  • the circulation device according to the invention can be incorporated in the design of newly build (painting and) drying device, but may very suitably also be provided as a retrofit installation for existing (painting and) drying devices.
  • the painting and drying booth shown in figures 1 and 2 , designated as a whole with reference numeral 10, comprises means for circulating aimed air flows in the spray booth, designated with reference numeral 20, comprising blowing means (2), outside the spray booth 10, connected to directional nozzle devices (4, 6) within the drying booth 10, with portions of ceiling filter means (5) of the spray booth 10 interposed between the blowing means 2 and the nozzle devices 4, 6.
  • the drying device 10 / device 20 for circulating aimed air flows operates in the following manner:
  • Air is drawn from inside the "plenum", i.e. the air chamber (30) above the painting and drying enclosure of the spray booth 10, separated from the actual painting and drying enclosure 10 by a ceiling 40 comprising a set of ceiling filters 5; the air is heated and pre-filtered but not filtered to EU5 quality.
  • the air is drawn into the blowing means 2 from the plenum 30 via air inlet 1.
  • the fan and motor units (blowing means 2) for circulating the air are placed on top or on the side of the spray booth.
  • four fan-motor units 2 are provided (on the figures only three motor-fan units are visible, as the two middle units are positioned behind each other, on the view from the front as well as on the side view).
  • Each fan-motor 2 / jets 6 combination will operate for a certain area of the booth. For example : front of car, back of car one side of car; other side of car.
  • Each system can be switched on / switched off depending on where the object (car) is to be repaired. For larger objects (busses, trucks, etc.) more than four fans or higher capacity fans and/or more jet / fan combinations can suitably be installed.
  • a ducting system (3) leads the air to the air chambers (4) of the nozzle device 4, 6.
  • the positions of the jets 6 are selected in such way that the drying exchange effect is maximized.
  • the air velocity in the ducts 3 and the surface (length x width) of the air chambers is calculated such that the crossing speed through the filters is in the optimal range specified for the used type of filters.
  • the specified ideal crossing speed is in the range between 0,2 and 0,4 m/sec.).
  • the air speed / air velocity in the air chambers 4 should be such that the velocity of the air exiting the jets 6 provides an air flow on the surface of the objects which are being dried in the range between 1 and 5 m/sec., most appropriately in the range between 1,5 and 2,5 m/sec., in order to achieve said optimal drying exchange effect on the drying surface of the object.
  • the essential novelty of the invention resides in the fact that the (existing) EU5 - ceiling filter is pinched between the two halves of the air chambers 4 of the nozzle device 4, 6.
  • the anyway existing ceiling filter of the spray booth is used as filter medium for the jet-system.
  • the ceiling filters are most suitably provided in ceiling frames attached to the ceiling structure through a swivel hinge for easy replacement of the filter sheets; "pinching" of the filter 5 between the two halves of an air chamber 4 occurs when setting the hinged ceiling frame in closed position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Drying Of Solid Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Claims (13)

  1. Procédé de séchage d'une carrosserie peinte, consistant à faire circuler des flux d'air ciblés dans une enceinte (10), au moyen de buses directionnelles (6) formées dans au moins un dispositif à buses (4, 6) ayant une chambre à air (4) avec deux moitiés dans la partie supérieure de ladite enceinte (10), et à évacuer l'air du fond de ladite enceinte, l'écoulement d'air vers lesdites buses directionnelles (6) dans ladite enceinte (10) étant généré par des moyens de soufflage (2) à l'extérieur de ladite enceinte (10), à travers des moyens de filtrage (5), caractérisé en ce que lesdits moyens de filtrage (5) forment au moins une partie de la surface de plafond (40) de ladite enceinte (10), et en ce que les moyens de filtrage (5) sont coincés entre les deux moitiés de ladite au moins une chambre à air (4).
  2. Procédé selon la revendication 1, caractérisé en ce que l'air est évacué du fond de ladite enceinte par les moyens d'évacuation d'air formant au moins une partie du plancher de ladite enceinte.
  3. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que lesdits flux d'air ciblés sont dirigés individuellement dans des directions choisies.
  4. Procédé selon la revendication 3, caractérisé en ce que lesdits flux d'air ciblés peuvent être orientés individuellement dans une direction choisie.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits flux d'air ciblés sur la surface de la carrosserie peinte ont une vitesse comprise entre 1 et 5 m / s, de préférence comprise entre 1,5 et 2,5 m / s.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que lesdits moyens de soufflage à l'extérieur de ladite enceinte aspirent l'air provenant d'une zone dite de plénum au-dessus de ladite enceinte.
  7. Dispositif (20) destiné à faire circuler un flux d'air ciblé dans une cabine de séchage pour des carrosseries peintes comprenant une enceinte (10) avec un plancher de fond formé au moins en partie de moyens d'évacuation d'air et des moyens de soufflage (2) prévus à l'extérieur de ladite enceinte (10), ledit dispositif (20) destiné à faire circuler un flux d'air ciblé comprenant un plafond supérieur (40) pour une telle cabine de séchage, des moyens de filtrage (5) pour l'air entrant, et comprend en outre des buses d'air ciblées (6) pouvant être reliées auxdits moyens de soufflage et formées dans au moins un dispositif à buses (4, 6) ayant une chambre à air (4) avec deux moitiés, à placer dans cette enceinte (10), tandis que des parties desdits moyens de filtrage (5) sont interposés entre ces moyens de soufflage (2) et lesdites buses (6), caractérisé en ce que le plafond supérieur (40) est au moins en partie formé par lesdits moyens de filtrage et en ce que les moyens de filtrage (5) sont coincés entre les deux moitiés de la chambre à air (4).
  8. Dispositif de circulation selon la revendication 7, caractérisé en ce que lesdites buses d'air directionnelles sont dirigées chacune dans une direction choisie et sont de préférence capables d'être orientées individuellement.
  9. Dispositif de circulation selon l'une quelconque des revendications 7 ou 8, caractérisé en ce que lesdits moyens de soufflage à l'extérieur de ladite enceinte aspirent l'air provenant d'une zone dite de plénum au-dessus de ladite enceinte.
  10. Dispositif de séchage pour des carrosseries peintes, comprenant une enceinte (10) avec un plancher de fond formé au moins en partie de moyens d'évacuation d'air et des moyens de soufflage (2) prévus à l'extérieur de ladite enceinte (10), caractérisé en ce que ledit dispositif de séchage comprend un dispositif (20) selon l'une quelconque des revendications 7 et 8 pour faire circuler un flux d'air ciblé dans ledit dispositif de séchage.
  11. Dispositif de séchage selon la revendication 10,
    caractérisé en ce que lesdites buses d'air ciblées sont des buses d'air ciblées individuellement.
  12. Dispositif de séchage selon la revendication 11, caractérisé en ce que lesdites buses d'air ciblées sont des buses d'air ciblées individuellement capables d'être orientées individuellement.
  13. Dispositif de séchage selon l'une quelconque des revendications 10 - 12, caractérisé en ce que lesdits moyens de soufflage à l'extérieur de ladite enceinte aspirent de l'air provenant d'une zone dite de plénum au-dessus de ladite enceinte.
EP07103603A 2007-03-06 2007-03-06 Dispositif et procédé de séchage pour carrosseries peintes, et dispositif de circulation d'air de séchage dans un tel dispositif et procédé Not-in-force EP1967804B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT07103603T ATE456015T1 (de) 2007-03-06 2007-03-06 Trocknungsvorrichtung und verfahren für bemalte körper, und vorrichtung zur zirkulation von trocknungsluft in einer solchen vorrichtung und bei einem solchen verfahren
DE602007004436T DE602007004436D1 (de) 2007-03-06 2007-03-06 Trocknungsvorrichtung und Verfahren für bemalte Körper, und Vorrichtung zur Zirkulation von Trocknungsluft in einer solchen Vorrichtung und bei einem solchen Verfahren
EP07103603A EP1967804B1 (fr) 2007-03-06 2007-03-06 Dispositif et procédé de séchage pour carrosseries peintes, et dispositif de circulation d'air de séchage dans un tel dispositif et procédé
CNA2008100881884A CN101259462A (zh) 2007-03-06 2008-03-06 被喷涂物体的干燥装置和方法、及在该装置和方法中用于循环干燥空气的装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07103603A EP1967804B1 (fr) 2007-03-06 2007-03-06 Dispositif et procédé de séchage pour carrosseries peintes, et dispositif de circulation d'air de séchage dans un tel dispositif et procédé

Publications (2)

Publication Number Publication Date
EP1967804A1 EP1967804A1 (fr) 2008-09-10
EP1967804B1 true EP1967804B1 (fr) 2010-01-20

Family

ID=38325522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07103603A Not-in-force EP1967804B1 (fr) 2007-03-06 2007-03-06 Dispositif et procédé de séchage pour carrosseries peintes, et dispositif de circulation d'air de séchage dans un tel dispositif et procédé

Country Status (4)

Country Link
EP (1) EP1967804B1 (fr)
CN (1) CN101259462A (fr)
AT (1) ATE456015T1 (fr)
DE (1) DE602007004436D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015214706A1 (de) 2015-07-31 2017-02-02 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102015214711A1 (de) 2015-07-31 2017-02-02 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
CN107929930A (zh) * 2016-10-12 2018-04-20 奥斯汀亚洲香港有限公司 一种自动涂覆人体的装置及其方法
CN108686906A (zh) * 2018-06-29 2018-10-23 江苏自强环保科技有限公司 一种喷涂工件烘干用废气处理装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2050649T5 (es) * 1992-04-30 1999-03-01 Ici Plc Un recinto para pintar y un metodo para forzar la evaporacion desde un revestimiento sobre una superficie de panel.
US5456023A (en) 1994-06-28 1995-10-10 Ransburg Corporation Advance cure paint spray booth
GB9702473D0 (en) 1997-02-07 1997-03-26 Junair Spraybooths Ltd Spraybooth
DE20104205U1 (de) 2001-03-12 2001-07-19 Dürr Systems GmbH, 70435 Stuttgart Heißlufttrockner für eine Beschichtungsanlage
DE20214439U1 (de) 2002-09-17 2002-12-19 Wolf Stahlbau GmbH u. Co KG, 85290 Geisenfeld Zusatzvorrichtung für Farbspritzanlagen
DE202004014233U1 (de) 2004-09-09 2004-11-18 Lutro Luft- Und Trockentechnik Gmbh Belüftungsvorrichtung für Lackier- und/oder Trocknungsanlagen sowie eine solche Lackier- und/oder Trocknungsanlage

Also Published As

Publication number Publication date
ATE456015T1 (de) 2010-02-15
CN101259462A (zh) 2008-09-10
DE602007004436D1 (de) 2010-03-11
EP1967804A1 (fr) 2008-09-10

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